This preview shows page 1. Sign up to view the full content.
Unformatted text preview: higher fitness than homozygous. 3) This pattern maintains genetic variation in a population C. Directional Selection 1) A pattern of natural selection that is a pattern of natural selection that increases the frequency of one allele. D. Stabilizing Selection 1) Occurs when individuals with intermediate traits reproduce more than others 2) As a result, intermediate phenotypes are maintained in a population Discussion 1/15/10 Evolutionary Mechanisms 1) Mutation 2) Genetic Drift--> Little/no selection pressure 3) Gene flow 4) Natural selection 1. Disruptive selection 2. Directional 3. Stabilizing-- genes are favored to approach mean 5) Random mating...
View Full Document
- Spring '08